sumbainamō

συμβαίνω,
future -βήσομαιRefs 5th c.BC+perfect -βέβηκα, 3rd.pers. plural -βεβᾶσιRefs 5th c.BC+, Ionic dialect infinitive -βεβάναιRefs 5th c.BC+: perfect infinitive passive -βεβάσθαιRefs 5th c.BC+aorist 2 συνέβην (see. below): aorist 1 subjunctive passive ξυμβᾰθῇ Refs:— stand with the feet together, Refs 5th c.BC+; συμβᾶσα τὼ πόδε, opposed to περιβάδην, Refs 3rd c.AD+; Παλλάδιον τοῖς ποσὶ συμβεβηκός a statue with closed feet, as in early Greek art, Refs 2nd c.AD+
2 σ. κακοῖς to be joined to them, i.e. increase them, Refs 5th c.BC+
3 meet, σὺν δ᾽ ἔβη ἐν Φιλότητι Refs 5th c.BC+; ξυμβέβηκε δ᾽ οὐδαμοῦ has never come in my way, has had naught to do with me, Refs 5th c.BC+
4 attack jointly, ἐπὶ Ναξίους Refs 1st c.BC+
II most frequently metaphorically, come to an agreement, come to terms, Refs 5th c.BC+; ἐπ᾽ ἐλάττονι σ. agree on (i.e. to accept) less, Refs 2nd c.AD+: with dative, Refs 5th c.BC+, etc.: with neuter adjective, ἐὰν ξυμβῶ τί σοι Refs 5th c.BC+; ξ. τὰ πλείω, οὐδέν, Refs: with infinitive, συνέβησαν ἐς τὠυτὸ.., τὸν δὲ βασιλεύειν Refs 5th c.BC+; ξ. ἤν τις ἁλίσκηται,.. δοῦλον εἶναιRefs 5th c.BC+; σ. εἰς τὸ μέσον agree to a compromise, Refs 5th c.BC+; λόγοις σ., of a verbal agreement, Refs 5th c.BC+: generally, make friends with, ἐκ πολέμου ξ. Refs 5th c.BC+perfect συμβεβάναι and passive, of the agreement, δοκέοντες πάντα συμβεβάναι that everything had been settled, or that they had settled everything, Refs 5th c.BC+
II.2 agree with, be on good terms with, οὐ.. Ἀθηναίοισι συνέβαιν᾽ Αἰσχύλος Refs 5th c.BC+; σ. ἑκατέρᾳ τῶν στάσεων hold with one and other of them, Refs 1st c.BC+
II.3 of things, tally, correspond with, ὁ χρόνος ἐδόκεε τῇ ἡλικίῃ συμβαίνειν Refs 5th c.BC+; χρησμοί τε συμβαίνουσι are in harmony therewith, Refs 5th c.BC+; αὐτὸ σ. εἰς ταύτην εἶναι πέμπτην five days later exactly tallies, Refs 4th c.BC+; τοῦτο σ. οὐ πλέον ἢ εἰς δώδεκα comes to no more than 12, Refs 5th c.BC+; τὸ φαρμακεύεσθαι τῷ καθαίρεσθαι εἰς ταὐτὸν σ. comes to the same thing as.., Refs 2nd c.AD+; of ashlar-work, fit or range exactly, Refs 2nd c.AD+
II.4 fall to one's lot, with dative person, μοι σ. ἆται Refs 5th c.BC+
II.5 to be an attribute or characteristic of, ξυνεβεβήκει.. Ἀθηναίοις τοῦτο Refs 5th c.BC+
III of events, come to pass, fall out, happen, συμβαίνει δ᾽ οὐ τὰ μέν, τὰ δ᾽ οὔ Refs 4th c.BC+; τῶνδε ναμέρτεια σ. Refs 5th c.BC+; εἰ καιρὸς σ. Refs 5th c.BC+ if anything happen (i.e. any evil), Refs 4th c.BC+: generally, occur, be found, exist, ἐν τῇ ἀρχαίᾳ ἡμετέρᾳ φωνῇ σ. τὸ ὄνομα Refs 5th c.BC+
III.b mostly impersonal, sometimes with dative et infinitive, αὐτῷ Ὀλυμπιάδα ἀνελέσθαι συνέβη Refs 5th c.BC+: sometimes with accusative et infinitive, συνέβη Γέλωνα νικᾶν Refs 5th c.BC+; followed by ὥστε, Refs 5th c.BC+participle, σ. ὄν, γιγνόμενον, λεγόμενον, Refs 5th c.BC+
III.c τὸ συμβεβηκός chance event, contingency, Refs 5th c.BC+ by accident, contingently (see. below iv. Refs; τοῦ συμβαίνοντός ἐστι it depends upon accident, easily happens, Refs 4th c.BC+
III.2 joined with Adverbs or Adiectives, turn out in a certain way, ὀρθῶς σφι ἡ φήμη συνέβαινε ἐλθοῦσα Refs 5th c.BC+; κακῶς, καλῶς συμβῆναι, Refs 5th c.BC+; ταῦτα.. λαμπρὰ σ. Refs 5th c.BC+; συμβαίνει καὶ σοὶ (i.e. ἄριστον) Refs 5th c.BC+: absolutely, turn out well, ἢν ξυμβῇ ἡ πεῖρα Refs 5th c.BC+
III.3 of consequences, come out, result, follow, δαπανῶντες ἐς τοιαῦτα ἀφ᾽ ὦν ἡ ἀσθένεια ξυμβαίνει Refs 5th c.BC+; τὰ συμβάντα, opposed to ἡ προαίρεσις, Refs 4th c.BC+
III.3.b of logical conclusions, result, follow, frequently in Refs 5th c.BC+: impersonal, it follows, with infinitive, Refs 5th c.BC+ turns out to be, i.e. consequently or inevitably is or happens, κάθαρσις εἶναι τοῦτο σ. Refs 5th c.BC+
IV in Philos., τὸ συμβεβηκός has two senses:
IV.1 a contingent attribute or 'accident' (in the modern sense), Refs 4th c.BC+; κατὰ συμβεβηκός 'accidentally', opposed to καθ᾽ αὑτό, Refs 4th c.BC+; opposed to ἁπλῶς, Refs 4th c.BC+; opposed to φύσει, Refs; opposed to κυρίως, πρώτως, Refs 2nd c.AD+; opposed to ἄντικρυς, Refs
IV.2 an attribute necessarily resulting from the notion of a thing, but not entering into the definition thereof, οἷον τῷ τριγώνῳ τὸ δύο ὀρθὰς ἔχειν Refs 4th c.BC+; distinguished by the addition of καθ᾽ αὑτό, Refs; in Epicurus, essential attribute, property, opposed to σύμπτωμα 'accident', τὰ τούτων συμπτώματα ἢ σ. Refs 1st c.BC+; in the Stoics, consequence, opposed to αἴτιον, Refs 4th c.BC+

H. G. Liddell, R. Scott, H. S. Jones, A Greek-English Lexicon (9th ed., 1925–1940) — digitised by the Perseus Digital Library and corrected and expanded by Tyndale House, Cambridge, via STEPBible-Data's TFLSJ table, CC BY 4.0. Covers all of Greek literature, not just the Bible.